Impression machine



Jain. 13,1942. l Y E. G. Rlx

` IMPRESSION MACHINE 2 Sheets-Sheet l Filed Aug. 24, 1939 Jan, 13, 1942. E. c. mx 2,269,691

I IMPRESS ION MACHINE Filed Aug. 24, 1939 2 Sheets-Sheet 2 Patented qian. 13, i942 rasata lli/@BES SEN MACHENE Edward G. Bix, Chicago, Ill., assigner to American Perforator Company, Chicago, Ill., a corporation of tilinois 9 Giaims.

My invention relates to impression machines.

One of the objects of my invention is 'to pro-- vide an impression machine having improved means for applying ink to one of the impression members.

A further object is to provide an improved limpression machine in which the impression is effooted by downward and forward movement of the operating lever.

A further object is to provide an improved impression machine in which the movement of the handle successively eiects the movement of the ink applying means from the face of the die, then from the space between the dies, yand then effects the impression movement of the dies.

A further object is to provide an impression machine in which the operating means include a segmental gear and in which the pinion with which the segmental gear meshes will be held in proper position to engage the segmental gear by the spring means which serve to return the die.

A further object is to provide an impression machine having improved means for locking the operating handle.

A further object is to provide an improved impression machine having parallel, intermeshing, shredding teeth which may be readily and accurately aligned.

Further objects and advantages .of the invention will be apparent from the description and claims.

In the drawings, in which an embodiment of my invention is shown:

Figure 1 is a side elevational view of Van impression machine, the parts being broken away to show the interior construction;

Fig. 2 is a front elevation of the machine shown in Fig. 1;

Fig. 3 is a plan view, parts being broken away;

Fig. 4 is a view similar to Fig. l but showing the parts in a different position;

Fig. 5 is a sectional View of the ink reservoir, substantially on the line 5-5 of Fig. 6;

Fig. 6 is a vertical section of the inl: reservoir substantially on the line fi-Ji of Fig. 5;

Figfl is a bottom view of the upper die;

Fig. 8 is a plan view of the lower die; and

Fig. 9 is a section on the line 9 9 ci Fig. S, the die shoe also being shown in section.

The construction shown in the drawings comprises a combination base and casing l, a iixed impression die 2 mounted `adjacent the lower front 'end of the casing, a vertically-reciprocable impression die Scooperating with the yfixed memlof the upper die.

ber, an ink applying mechanism fi, a jaw actuating mechanism 5, and an actuating lever v(i for controlling the movement both of the ink applying mechanism fl and of the jaw actuating mechanism 5.

Before describing in detail the construction, I will briey outline the operation.

A sheet 'I on which the impression isto be made is placed in position between the fixed and movable dies2 and 3, and the actuating lever li5 is pulled forwardly and downwardly to effect the movement of the ink applying mechanism 4 and of the movable impression die 3. The rst movement of ythe actuating lever i3 causes thesloping portion 'la of the cams 8 to engage the rear ends il of the rocking guide frame it to move the ink pad H away from the movable impression-die 3. I have found that about a 'l-degree movement of the operating handle 6 is satisfactory to accomplish this result. This movement of the ink pad Il away from the impression die is necessary in order that the shredding corrugations cr teeth I2 on the die may not out the felt onthe ink pad H as it is moved out of the way .of the movable die 3. I find that about a one-sixteenth `of an inch drop is suiiicient to :accomplish this. vFigure l shows the position of parts when the ink pad I i is moved some distance fromA the diet.

As the operating lever 6 continuesrto move, the drop i3 in the cam I4 will permit a quick movement or" the three-armed lever l5 Ibyy the spring Iato move the ink pad Ii and the ink reservoir I6 out from between the twodies 2 and 3 to enable the succeeding impression movement I nd that an additionalldegree movement of the lever is suici'ent to accomplish this ,resultl satisfactorily. The lever vrI5 is pivoted at ma and pivotally connected `with the ink reservoir i6 by the link 15b.

As theactuating lever continues its movement,

the teeth of the segmental rock gear I'I engage the teeth of the idler pinion i8, which idler pinion engagesthe teeth of the segmental rocklgear i9 which causes a forward movement ,of the link ,2Q which has a pivotal connection 2| with an intermediate portion of the toggle 22 .which eiects the impression movement ci the upper die 3. Fig. 4 shows the position of .parts when the ink pad Il has moved away from the upper die .3 and has been partially withdrawn from. between the dies 3 and d. This forward Vand downward the lever-6 strikes the adjustable stop 23 onthe base ofV the machine,- at which time the movable die will have moved to bring the desired pressure of the upper die against the lower die,

On the return movement of the lever 6, the movable die is moved upwardly, as fast as the gear transmission between the operating lever and toggle will permit, by means of the coil compression springs 24 surrounding the guide rods 25 of the movable die. This upward movement of the die is limited by the engagement of the spring-pressed collars 26 secured to the guide rods 25 which engage the under sides of the guide lugs 27 on the casing. The machine is so designed that the segmental rock gear I on the actuating lever shaft 28 will disengage the idler pinion I8 at the time that the coil compression springs 24 have moved the movable die 3 to its upper limit of movement so that further upward and rearward movement of the actuating lever 6 may be made without causing any movement of the movable impression die 3. This further movement of the actuating lever after the impression die has ceased to move brings the shoulder I3 on the cam I4 against the lift pin 29 on the three-armed rock lever I5, causing the ink pad II to move quickly into position between the two jaws and bringing the pad opposite the face of the upper movable die 3.

Further movement of the rock lever brings the sloping portions I of the cams 8 opposite the rear ends 9 of the rock frame Ill, allowing the coil tension spring 36 to pull the rear end of the rock frame I0 downwardly, thus causing the front end of the frame to move upwardly to bring the ink pad II into spring-pressed engagement with the upper impression die 3. The extreme upward and rearward movement of the actuating lever is controlled by means of an adjustable stop 30a engaging an abutment on the lever. In order to hold the actuating lever yieldingly in open jaw position, a spring-pressed plunger h is provided which engages a recess in the actuating handle to hold the lever against the adjustable stop 30a.

The ink pad II is carried by the slidable ink reservoir I6 which is mounted to move back and forth in the U-shaped rock frame I0. This U- shaped rock frame comprises a pair of rock arms 3| mounted on a pivot shaft 32, the front ends of the arms being slotted at 33 to receive the anti-friction rollers 34 on the sliding ink reservoir. This ink reservoir, if desired, may be made large enough to hold a supply of ink which will last for two or three months in ordinary use.

In order to insure a proper supply of ink to the ink pad II in case the pad is allowed to become dry or if for any reason ink is not being supplied in suicient quantities, I provide manually operable pump pistons or plungers 35 which place the ink in the reservoir I6 under pressure, causing it to fiow upwardly through perforations 36 in the plate 3l on which the ink pad rests. If these plungers 35 are operated quickly, they cause fluid pressure to be exerted on the ink in the reservoir which forces the ink up into the pad II. In order to admit air for the ordinary iiow of ink, an opening 31a is provided in the upper part of the plunger through which air can enter. However, when it is desired to apply pressure to the ink, in pressing down on the plunger, the finger is placed so as to cover this opening to prevent the escape of air. A coil compression spring 38 returns the plunger. The ink reservoir may be divided by a partition 39 into two compartments 40 and 4I, one for one color of ink and the other for ink of a different color. The ink reservoir is rugated area 53.

provided with a number of channels 42 leading from the space underneath the plunger 35 to the openings 36.

It will be noted that on the upward movement of the die, the under side of the ink reservoir I6 serves as a stripping plate for the sheet I in case the sheet happens to stick to the upper die and be carried upwardly thereby. It will also be noted that the forward movement of the ink reservoir will further help to strip the paper from the upper jaw in case it should stick at the front edge of the die.

The jaws may be locked in open position by means of a key-controlled rock shaft 43, on the rear end of which is mounted a lock arm 44 which can be turned and locked in position to engage in an abutment 45 on the rock cam i 4 keyed to the rock shaft 28 on which the actuating lever 6 is mounted.

As shown in Figs. 7 and 9, the impression portions of the dies 2 and 3 are formed with interengaging diagonal teeth or corrugations 42.

In order to enable adjustment to be made to bring about proper registration of the corrugations I2 in the upper die 3 with the corrugations I2 in the lower die 2, the upperdie is first secured in fixed position in the jaw. The lower die 2 is then placed in the transverse guideway or recess 46 in the die block 4T, a shim 48 being inserted between the lower die `block vand the front wall of the recess 46, and the cover plates 49 and 50 are secured in position. The screws 5I, which are used for pressing the shim 48 against the die 2, are loosened so that the lower die has a nice slip lit in the transverse guideway 46. The lever 6 is then operated to bring the upper die 3 down on the lower die 2. Due to the angle at which the corrugations extend, this bringingtogether of the dies will result in the lower die 2 adjusting itself transversely to whatever extent is necessary to cause the corrugations I2 in the lower die to register accurately with the corrugations in the upper die. When this accurate registration has been effected, the screws 5I controlling the shim 48 are tightened up to clamp the lower die securely in the position to which it has adjusted itself.

In order to enable adjustment to be made to bring about proper registration of the corrugations I2 in the upper die with the corrugations in the lower die, I have found it desirable to have these corrugations extend parallel to each other and at an oblique angle to the front and rear parallel boundary lines 52 of the rectangular cor- This rectangular corrugated area is Lin general materially less in its fore-andaft dimensions than in its side-to-side dimensions. If the corrugations extended parallel to the long sides of the rectangle, it would require relative foreandaft adjustment of the dies to effect perfect registration and a slight misadjustment of one end of the adjustable lower die would cause a decided misalignment of the corrugations in the upper and lower dies. If the corrugations extended parallel to the side edges of the rectangle, it would render unsightly the impressions of certain of the characters which extend in general from front to rear. By having the corrugations run diagonally, a pleasing impression is obtained and a slight misadjustment in one end of the die does not throw the corrugations materially out of alignment.

In the claims where the word impression is used, it is to be understood as broad enough to include perforating, embossing, mutilating, and printing.

Further modifications will be apparent to those skilled in the artand it is desired, therefore, that the inventionbe limited only by the prior art and the scope of the appended claims.

Having thus described my invention, what I claim and desire toV securev by Letters Patent is:

l. -An link impression device comprising a pair of .impression members mounted for relative movementtoward and from each other, a pivotally mounted track member, an ink applying member reciprocable on said track member to move into and out of the space between said impression members, spring-means acting on said track tending to tilt it to force the ink applying member into ink applying position, and actuating means for positively tilting said track against the action of said springjmeans4 to move the ink applying member away from `ink applying position, for moving said ink applying member along said track to move it from between said impression members and for causing relative movement of said impression members to eiect the printing operation.

2. An ink impression device comprising a pair of impression members mounted for relative movement toward and from each other, a pivotally mounted track member, an ink applying member reciprocable on said track member to move into and out of the space between said impression members, means acting on said track to tilt it to force the ink applying member into ink applying position, and actuating means for tilting said track to move the ink applying member away from ink applying position, for moving said ink applying member along said track to move it from between said impression members and for causing relative movement of said impression members to eiiect the printing operation, said pivotally mounted track member having a portion lying above the article to be impressed for stripping the article from the impression member as the impression members separate,

3. An ink impression device comprising a pair of impression members mounted for relative movement toward and from each other, a pivotally mounted track member, an ink applyingmember reciprocable on said track member to move into and out of the space between said impression members, spring means acting on said track tending to tilt it to force the ink applying member into ink applying position, and actuating means for positively tilting said track against the action of said spring means to move the ink applying member away from ink applying position, for moving said ink applying member along said track to move it from between said impression members and for causing relative movement of said impression members to eiiect the printing operation, said actuating means for moving the ink applying member away from ink applying position comprising a cam having an abrupt drop to enable the spring to cause rapid application of the ink applying member to the impression member.

4. An ink impression device comprising a frame, a pair of impression members mounted on said frame for relative movement toward and from each other, said frame having an open throat in the rear of said impression members, an ink applying device mounted on said frame comprising a at sheet-like ink pad and an ink reservoir in the rear of the pad for supplying ink to said pad, said pad and reservoir being mounted as a unit for reciprocating movement. toacause the flat ink pad to moveinto the-space between said impression -members -for applying ink to none of said membersvandto move out from the space between said impression members to enable the impression'operation, said ink reservoir Ybeing reciprocable in the open throat in the rear of said impression members.

5. An ink impression device comprising a frame, a lpair of impression members mounted on said frame for relative movement toward and from each other, said frame having an open throat in the rear of said impression members, an ink applying device mounted on said frame comprising a flat sheet-like link pad and an ink reservoir in the rear of the pad for supplying ink to said pad, said pad and reservoir being mounted as a unit for reciprocating movement to cause the ilat ink pad to move into the space between said impression members for applying ink .to one of said members and to move out from the space between said impression members. to enable the impression operation, said ink reservoir being reciprocable in the open throat in the rear of said impression members, said ink receptacle comprising a shallow pan lying in the general plane of the ink pad.

6. An ink impression device comprising a frame, a pair of impression members mounted on said frame for relative movement toward and from each other, said frame having an open throat in the rear of said impression members, an ink applying device mounted on said frame comprising a flat sheet-like ink pad and an ink reservoir in the rear of the pad for supplying ink to said pad, said pad and reservoir being mounted as a unit for reciprocating movement to cause the flat ink pad to move into the space between said impression members for applying ink to one of said members and to move out from the space between said impression members to enable the impression operation, said ink reservoir being reciprocable in the open throat in the rear of said impression members, said ink receptacle comprising a shallow pan lying in the general plane of the ink pad, and said ink applying device comprising also a perforated plate on which the pad rests, the perforations in said plate being in communication with the ink reservoir.

7. An ink impression device comprising a frame, a pair of impression members mounted on said frame for relative movement toward and from each other, said frame having an open throat in the rear of said impression members, an ink applying device mounted on said frame comprising a iiat sheet-like ink pad and an ink reservoir in the rear of the pad for supplying ink to said pad, said pad and reservoir being mounted as a unit for reciprocating movement to cause the iiat ink pad to move into the space between said impression members for applying ink to one of said members and to move out from the space between said impression members to enable the impression operation, said ink reservoir being reciprocable in the open throat in the rear of said impression members, said ink applying device comprising also a perforated plate on which the pad rests, the perforations in said plate being in communication with the ink reservoir.

8. An ink impression device comprising a frame, a pair of impression members mounted on said frame for relative movement toward and from each other, said frame having an open throat in the rear of said impression members,

an ink applying device mounted on said frame comprising a flat sheet-like ink pad and an ink reservoir in the rear of the pad for supplying ink to said pad, said pad and reservoir being mounted as a unit for reciprocating movement to cause the at ink pad to move into the space between said impression members for applying ink to one of said members and to move out from the space between said impression members to enable the impression operation, said ink reservoir being reciprocable in the open throat in the rear of said impression members, said ink receptacle comprising a shallow pan lying in the general plane of the ink pad, said pan having an apertured cover, said ink applying device comprising also a cylinder in communication with the aperture in the cover, and a piston operating in said cylinder to force ink from said reservoir into said pan.

9. An ink impression device comprising a v frame, a pair of impression members mounted on said frame for relative movement toward and from each other, said frame having an open goeden throat in the rear of said impression members, an ink applying device mounted on said frame comprising a flat sheet-like ink pad and an ink reservoir in the rear of the pad for supplying ink to said pad, said pad and reservoir being mounted as a unit for reciprocating movement to cause the at ink pad to move into the space between said impression members for applying ink to one of said members and to move out from the space between said impression members to enable the impression operation, said ink reservoir being reciprocable in the open throat in the rear of said impression members, said ink receptacle comprising a shallow pan lying in the general plane of the ink pad, said pan having an apertured cover, said ink applying device comprising also a cylinder in communication with the aperture in the cover, and a piston operating in said cylinder to force ink from said reservoir into said pan, and said piston having an aperture therethrough to be closed by the hand of the operator when applying pressure to the piston.

EDWARD G. RIX. 

